document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=684003>Question 684003</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What kind of numbers form the domains for the following types of functions? Also what number should be excluded ?<BR>\n" );
document.write( "A) Rational functions <BR>\n" );
document.write( "B) Radical functions <BR>\n" );
document.write( "C) Logarithmic functions <BR>\n" );
document.write( "D) Exponential functions  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #423876 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=423876\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A) Rational functions:  Denominators must NEVER be ZERO.\r<BR>\n" );
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document.write( "B) Radical functions:  Radicands must be GREATER than or EQUAL to ZERO.\r<BR>\n" );
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document.write( "C) Logarithmic functions:  For <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%29+Rational+functions%3A++Denominators+must+NEVER+be+ZERO.%0D%0A%0D%0A%0D%0AB%29+Radical+functions%3A++Radicands+must+be+GREATER+than+or+EQUAL+to+ZERO.%0D%0A%0D%0A%0D%0AC%29+Logarithmic+functions%3A++For+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >y = log (b, x) base numbers must never be negative, zero, or 1.  In other words, b>0 and b not equal to 1.  Secondly, x>0.  In other words, you can't have the log of a negative number. \r<BR>\n" );
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document.write( "D) Exponential functions:  There are NO restrictions on x.  Domain is all real numbers. \r<BR>\n" );
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document.write( "Dr. Robert J. Rapalje, Retired<BR>\n" );
document.write( "Seminole State College of Florida\r<BR>\n" );
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document.write( "www.mathinlivingcolor.com.<BR>\n" );
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